Amazon has had storage options for Linux file servers for some time, but it recognizes that a number of companies still use Windows file servers, and they are not content to cede that market to Microsoft. Today the company announced Amazon FSx for Windows File Server to provide a fully compatible Windows option.

That means if you use this service, you have a first-class Windows system with all of the compatibility with Windows services that you would expect, such as Active Directory and Windows Explorer.

AWS CEO Andy Jassy introduced the new feature today at AWS re:Invent, the company’s customer conference going on in Las Vegas this week. He said that even though Windows File Server usage is diminishing as more IT pros turn to Linux, there are still a fair number of customers who want a Windows-compatible system and they wanted to provide a service for them to move their Windows files to the cloud.

Of course, it doesn’t hurt that it provides a path for Microsoft customers to use AWS instead of turning to Azure for these workloads. Companies undertaking a multi-cloud strategy should like having a fully compatible option.